Re: Replacing laptop hard drive; any hard drive?
If your HDD is a SATA based drive, any SATA 1/2/3 drive will usually work just fine in it. If the laptop uses an IDE drive, you must get an IDE drive (more costly, harder to find).
You do not have to stick to an "hp" branded drive, any brand will work. HP uses Seagate, Western Digital, Samsung, Toshiba (re-branded Samsung or hitachi drives usually), and even Hitachi drives, it just depends on what was available and cheap when they ordered the lot for production.